barack obama met mandela only one in 2005, when obama was still a senator. nelson mandela. >> when south africa hosted the world cup tournament in july of 2010, he made his last major public appearance at the final games. the crowd honoring him with a thunderous ovation. >> never, and never agai again, shall it be will gain the experience, the oppressive, of one by another. and suffer the indignity of things to some of the world. >> signing up the effects are so glorious, a human achievement. god bless africa. in 1990, he visited new york and nearly 100,000 people gathered in harlem to hear him speak. tonight, outside the apollo theater, marque honored nelson mandela, that's where jordan martin is standing by, what are you hearing tonight? >> first john, it is pretty evidence you can see the marque you just mentioned it says in memory ol' nelson mandela, he changed our world. a lot of people here in hair held, and in new york in general remember when he came here, actually the marque was a big part of it. it said welcome home mr. and mrs. mandela. there were